Clutch



. COATES CLUTCH Filed April 27. 1921 gmc/who@ Weder/cf @des Mrch 4 1924.

Patented Mar. 4, 1924.

UNITED 1 l"STATES PATENT OFFICE. f

FREDERICK COATES, OF CINCINNATI," OHIO., ASSIGNOR'TO FEDERAL PRODUCTS COM- "il PANY, 0F CINCINNATI, OHIO, CORPORATION OF OHIO. i

CLUTCH.

vApplication led April 27, 1921. Serial No. 464,831.

To all whom t may concern.'

Be 1t known that FREDERICK CoA'rEs, a

Cincinnati, in the county of Hamilton vand State of Ghio7 has invented certain new and useful Improvements in Clutches, of which the following'is a specification.

This invention relates to power transmission machinery andl has special reference to a slip 4friction clutch adapted for driving a shaft in'such manner that the shaft .is normally held against revolution but `may be manually released froml restraint to temporarily yeffect turning of such normally quiescent shaft. Y

One important object of the present invention is to provide an improved form of clutch pecu-liarly adapted to control the o-peration of paper can making machinery of the manually controlled type.

A second important object of the invention is to provide an improved form of clutch for a shaft so arranged that the driven shaft may be instantly stopped at the will of the operator upon arrival at a predetermined position.

A third important object of the invention is to provide an improved form of clutch and stop so arranged that the driving torque of the clutch may be varied at will wit-hout stopping the revolution of the driving member. l

IVith the above and other objects in view, as will be hereinafter apparent, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings like characters of reference indicate like parts in the several views, and

Figure 1 is a side View of the clutch taken from the controlling or stopping side thereof.

Figure 2 is an edge view of the clutch, certain parts being shown in section to better disclose the relationship of the elements.

In the embodiment of the invention herein shown and described, and which is typical of various forms in which the device may be embodied, there is disclosed a base 10 from which extend upwards a pair of standards 11 terminating in bearings l2. -In these bearingsisl mounted the shaft 13 which is to l .be driven.W

citizen of the United States, residing at -pin .14l is a collar 15. This collar constitutes Fixed on this shaft by .means of a-tapered the hubl of a'friction disk 16 havingits periphery bevelled as at'f17. Mounted on the shaft 13 is a second friction dIsk 18 also having its periphery bevelled as atl9, the bevels of the two disks being arranged to face each other. Adjacentthe `hub 2O yof the disk 18 is a collar 21'. which is adjustable'along the shaftl3 and is secured in adjusted position by means of a setscrew 22.

fThel driving element `consists of an annular member 23 which. has on eachxside a bevelled face 24 conforming to the bevels 17 and 19. 'Ihis driving member is positioned between the two clutch disks so that the bevelled faces of said disks bear against the bevelled faces of the driving member. Between the bevelled faces the driving member is provided with an inwardly extending rib 25. This annular member is driven by the usual belt 26.

In order to produce the proper amount of driving torque as well as to adjust the same, there is provided a series of bolts 26 which are secured by their heads in the disk 16 and project through the disk 18. On the projecting end of each bolt is mounted a compression spring 27 which is held in adjusted compression by means of a washer 28 and nut 29.

On the base 10 is mounted a bracket 30 to which is secured, by a pivot bolt 317 the lower end of a hand lever 32. This lever swings toward and from the shaft 13 and on the side next the shaft 13 is provided with can be done while the driving member is revolving since the clutch disks can be kept from rotation by engaging the lever 32 with one of the stop pins 34. I/Vith the clutch properly adjusted the driving member will revolve under the influence of the belt 26. Whenever it is desired to permit the rotation of the shaft 13 the lever 32 is moved to free itl from engagement kwith thek stop pin 34 with which it may be engaged. The shaft will then revolve until the lever is moved toward Ythe shaft whereupon one of the stop pins will engage in the notch 33 and the shaft will thus be instantly stopped.

There has thus been provided a simple, and eicient device of the kind described and for the purpose specified.

It is obvious that minor changes may be made in the fornir` and construction "of the invention without departing from the material principles thereof. It is not therefore desired to confine the invention to the exact form herein shown and described but it is vwished to'include all such as come Within the scope claimed.

Havingthus described the invention, what is claimed as new, is Y j d l. ln a clutch, a shaft, a pairl of opposed trictiondisks carried by said shaft,- one of said disks being xed to said shaft, an annular driving member located between said disks and frictionally engaged therewith, said member being arrangey for engagement by a driving element, means constantly urg-v ing the other clutch disk towards the fixed clutch disk, and means for locking the disks and shaft from movement comprising stop pins on one of said disks and a lever pivoted adjacent the stop pin provided disk and having a notch wherein said stop pins may selectively engage.

2'. In a clutch, a shaft, a pair of opposed friction disks carried by said shaft, one of said disks being liked to said shaft, an annular Vdriving member located between said disks and trietionally engaged therewith, said member being arranged for engagement by a driving element, bolts carried by one of the disks and projecting through the other disk, springs on the projecting ends of said bolts, nuts on said Vbolts to adjust the tension or' said springs, and means for lockingV the disks and shaft from movement comprising stop pins on one of said disks and a lever pivoted adjacent the stop pin provided disk and having a notch wherein vsaid stopv pins may selectively engage.

ln testimony Vwhereof aiX my signature.

FREDERICK COATES. 

